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Search: id:A104765
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| A104765 |
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Triangle T(n,k) read by rows: row n contains the first n Lucas numbers A000204. |
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+0
4
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| 1, 1, 3, 1, 3, 4, 1, 3, 4, 7, 1, 3, 4, 7, 11, 1, 3, 4, 7, 11, 18, 1, 3, 4, 7, 11, 18, 29, 1, 3, 4, 7, 11, 18, 29, 47, 1, 3, 4, 7, 11, 18, 29, 47, 76, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 1, 3, 4, 7, 11
(list; table; graph; listen)
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OFFSET
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1,3
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COMMENT
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Reading rows from the right to the left yields A104764.
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FORMULA
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T(n,k)=A000204(k), 1<=k<=n.
T(n,k)=A104764(n,n-k+1).
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EXAMPLE
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First few rows of the triangle are:
1;
1, 3;
1, 3, 4;
1, 3, 4, 7;
1, 3, 4, 7, 11;
1, 3, 4, 7, 11, 18;
...
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CROSSREFS
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Cf. A000204, A104765, A104762, A104763.
Cf. A027961 (row sums). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 22 2009]
Sequence in context: A095709 A076152 A107638 this_sequence A064884 A093560 A131504
Adjacent sequences: A104762 A104763 A104764 this_sequence A104766 A104767 A104768
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KEYWORD
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nonn,tabl,easy
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Mar 24 2005
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EXTENSIONS
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Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 23 2008
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